792 search results for "maps"

Plot maps like a boss

March 5, 2012
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Plot maps like a boss

A new package OpenStreetMap has been released to CRAN this week which is designed to allow you to easily add satellite imagery, or open street maps to your plots. Raster maps are a great way to add context to your spatial data with a minimum outlay of effort. The syntax in OpenStreetMap is fairly simple, just give

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The undiscovered country – a tutorial on plotting maps in R

February 25, 2012
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The undiscovered country – a tutorial on plotting maps in R

The ability to handle maps and geospatial images is always a nice trick to have up your sleeve. Almost any sizeable report will contain a map – of a locality, of a country, or of the world. However, very few analysts have the ability to produce these plots for themselves and often resort to using...

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Creating beautiful maps with R

February 24, 2012
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Creating beautiful maps with R

Spanish R user and solar energy lecturer Oscar Perpiñán Lamigueiro has written a detailed three-part guide to creating beautiful maps and choropleths (maps color-coded with regional data) using the R language. Motivated by the desire to recreate this graphic from the New York Times, Oscar describes how he creates similar high-quality maps using R. In Part 1, Oscar grabbed...

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Maps with R (III)

February 23, 2012
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Maps with R (III)

In my previous posts (1 and 2) I wrote about maps with complex legends but without any kind of interactivity. …Continuar leyendo »

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Maps with R (II)

February 20, 2012
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Maps with R (II)

In my my last post I described how to produce a multivariate choropleth map with R. Now I will show …Continuar leyendo »

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Maps with R (I)

February 18, 2012
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Maps with R (I)

This is the first post of a short series to show some code I have learnt to produce maps with …Continuar leyendo »

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Great Maps with ggplot2

February 2, 2012
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Great Maps with ggplot2

The above map (and this one) was produced using R and g

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heatmaps: controlling the color representation with set data range

January 27, 2012
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heatmaps: controlling the color representation with set data range

Often you want to set the fixed colors for particular range of your dataset to be sure that the visual output is correctly represented. This is particularly useful for time series data, where the range or your dataset might drastically … Continue reading →

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Social Media Interest Maps of Newsnight and BBCQT Twitterers

January 26, 2012
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Social Media Interest Maps of Newsnight and BBCQT Twitterers

I grabbed independent samples of 1500 recent users of the #newsnight and #bbcqt hashtags within a minute or two of each other about half an hour ago. Here’s who’s followed by 25 or more of the recent hashtaggers in each case. Can you distinguish the programmes each audience interest projection map relates to? Here’s the

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Geocode your data using, R, JSON and Google Maps’ Geocoding APIs

January 24, 2012
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Over the last year and half, I have faced numerous challenges with geocoding the data that I have used to showcase my passion for location analytics.  In 2012, I decided to take thing in my control and turned to R.  Here, I am sharing a simpl...

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